Home / 887,680,970.84-1,223,997,280.04-663,945,636.62

Finding the Fourth Proportional to 887,680,970.84, 1,223,997,280.04 and 663,945,636.62

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Solution

The fourth proportional to 887,680,970.84, 1,223,997,280.04 and 663,945,636.62 is: 915,495,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,680,970.84 : 1,223,997,280.04 = 663,945,636.62 : x
  2. Step 2: Convert to fraction form
    887,680,970.84/1,223,997,280.04 = 663,945,636.62/x
  3. Step 3: Cross multiply
    887,680,970.84x = 1,223,997,280.04 × 663,945,636.62
  4. Step 4: Simplify right side
    887,680,970.84x = 812,667,653,307,866,624
  5. Step 5: Solve for x
    x = 812,667,653,307,866,624/887,680,970.84
  6. Step 6: Final answer
    x = 915,495,183.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.